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Re: Sims 3 launcher won't open

@Kiarah001  Please undo any changes you've made (i.e. compressing files).  Try reinstalling DirectX 9.  You don't need to uninstall anything; just download the installer from Microsoft and run it.

https://www.microsoft.com/en-US/download/details.aspx?id=8109

Restart your computer afterwards and before trying to play.

If that doesn't help, please run a dxdiag and attach it to a post.

https://help.ea.com/en/help/pc/how-to-gather-dxdiag-information/

Edit:  For anyone struggling to install DX9 or unsure if the runtime has in fact installed, please see this post for more detailed instructions:

https://answers.ea.com/t5/Technical-Issues-PC/SIMS-3-GAME-WON-T-LAUNCH-WINDOWS-10/m-p/10711778#M247861

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